Lower bound for TypeVars
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topic: feature
- Dominant language
- Python
- Stars
- 1.8k
- Forks
- 302
- Avg merge
- 23h
- Merged PRs (30d)
- 8
Description
Lower bounds are useful when implementing type safe methods of (classes that are covariant with some type) that take argument of some other type. For example, the method updated of scala's Seq
reference: #59
Contributor guide
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reading this proposal and the referenced issue #59, then compare the Scala Seq lower-bound example with Python TypeVar behavior. The payload names no files, tests, or implementation entry point, and completion criteria are not specified, so the work first requires an agreed design.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- python
- Domain
- developer-experience
- Issue type
- Feature
- Difficulty
- 5/5
- Estimated time
- Over a week
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100